Furnace oil is used in estimated 50-60% industries,” said Dinesh Mittal, president of Sahibabad Industrial Area, Site-IV. Comparatively, furnace oil has 15,000- 23,000 ppm sulphur and petcoke 69,000-74,000 ppm sulphur. They emit sulphur oxide and nitrogen oxide, which form particulate matter, tiny particles that can penetrate deep into the lungs. The court came down heavily on the Centre for not notifying emission norms for sulphur oxide and nitrogen oxide for 34 industries. Advocate Aparajita, assisting the court in the case, said pollution levels in Bhiwadi, Faridabad and Ghaziabad had spiked after Diwali.

Source: Hindustan Times October 24, 2017 18:22 UTC